Just did an engine oil and filter change, engine air filter change, chassis grease job, all fuel filters (primary, secondary and 200 micron), Hydro-Hot service (filter, nozzle and burn tube cleaning, changed coolant to ELC, changed transmission filters and oil, genset oil, filter and fuel filter change (did not do the air filter). The total cost doing it myself was $567.93. Total time about 6.5 hours. The old oil was no problem. I put it into 5 gallon diesel fuel containers, then take it up to the parts store for disposal.